Hair-waving apparatus



April 17, 1928.

v w. G. SHELTON HAIR WAVING APPARATUS Filed Feb-9, 1928 II I) Ml h/M/mm 1566 0/7 A 7"? EVQ Patented Apr. 17, 1928.

UNITED. STATES WILLIAM G. SHEL'ION, OF ST. LOUIS, MISSOURI.

HAIR-WAVING ArrAnA'rUs.

Application filed February 9, 1928. Serial No. 253,018.

My invention relates to apparatus used in the hair waving industry and consists in a novel heater dome and heater equipment associated therewith.

In apparatus of this kind, it is desirable to sell a heater machine equipped with a certain number of heaters, which number may be added to if desired, and one object of my invention is to provide a device in which heaters may be applied or removed readily and without the services ofan electrician.

Another object of my invention is to reduce the expense of heater machines by simplifying the wiring and individual heater connections.

Another object of my invention is to provide a support for the individual heaters whereby the latter may be held at any de-- sired height and may be readily moved from any given position by the use of a single hand of the operator.

In the accompanying drawings which illustrate a selected embodiment of my invention- Figure 1 is a side elevation of a dome with a number of heaters shown as suspended therefrom.

Figure 2 is a top view of the same structure with the dome cover removed.

Figure 3 is a vertical transverse section taken approximately on the line 3--3 of Figure 2.

Figure 4 is in part a side elevation and in part a vertical section through that portion of the dome structure to which the main supply wires are connected and to which the individual heater wires are attached.

i A standard is indicated at 1 and carries a bracket 2 on its upper end upon which the body or bottom portion 3 of the dome is mounted. The dome is provided with a removable cover 4 which is secured in place by a single nut 5 adapted to be screwed into a hub 6 mounted on the body 3.

The body 3 and cover 4 are preferably made of comparatively thin metal, the thickness of which is exaggeratedin the drawings in order to more clearly illustrate the structure, and thebody has a vertical rim 7 pro vided substantially throughout its circumference with a series of notches or slots 8 which are open at their upper ends when cover 4 is removed. 7

The heaters 9 are preferably wired in pairs and each heater has a twisted cord extending through the rim 7 in the dome body. 7 The two cords of each pair of heaters have one wire 11 in common and each cord has one wire 12 secured to an insulating block 13 which is provided with spaced terminals 14 adapted to be inserted into corresponding bushings 15 mounted on spaced brass strips 16 carried on the rectangular frame 17 which is formed of insulating material and is mounted upon structural supports 18 projecting radially of the hub 6.

I utilize holders or lifts 19 for mounting the cords 10 and for supporting the heaters 9 at any desired height. Each of these lifts 19 has vertical slits provided in its opposite sides and adapted to receive the opposed edges of one of the slots 8 so as to hold the lift in position. The upper portion of each lift has a horizontal passage for the heater cord 10 and the lower portion of each lift has a downwardly and inwardly inclined passage for the heater cord. The diameter of each of these passages is just large enough to permit the cord to slide freely therethrough when the same is straight. If the cord is disposed at an angle to the face forming the end of the portion through which the cord passes, as indicated at A in Figure 1, there will be sufiicient friction between the cord and the lift so that the heater will be held at an elevated position as indicated by the lefthand heater in Figure 1. This friction, however, will not be sufiicient to interfere with the pulling of the cord throughthe lift in either direction by the operator who will use more force thanthe mere weight of the heater.

I am aware that devices have been used heretofore which could be applied to' the cords intermediate the heater and the'dome and could be used for holding the heaters in elevated position but all such devices with which I am familiar required the use of both hands of the operator in order to adjust the same and usually these devices would be positioned promiscuously at different heights on different cords so that the assembly as a whole presented a very unsightly appearance. With my device all of the lifts are located at the same height which adds greatly to the appearance of the machine and, as previously explained, the heaters may be raised and lowered by one hand of the operator. The disposition of the lower arm of the lift tends to direct the heater cord inwardly r'atherihan outwardly of the axis of the dome and where the heater cords are stiff this arrangement improves the appearance of the device.

When the cover a is in position the downturned flange of its rim rests on the outwardly projecting portions of lifts 19, holding the latter against displacement. Thetime just as readily.

As an additional feature promoting the attractive appearance of my device, 1 provide cylindrical plugs 20' having slits in their opposite sides similar to lifts 19 and adapted to be inserted in those slots 8 of the heater body .3 which are not equipped with the lifts 19.. These plugs close up the openings and render the device more slightly. They may be easily removed when it is desired to 'apply a lift. If desired, the lift could include a spring contact with the heater cord and this and other details of my invention may be varied without departing from the spirit thereof, and I contemplate the exclusive use of all such modifications as come within the scope ofrny' claims.

I claim:

1.. In. a hair waving heating machine, a dome, a wired member within said dome, a plurality of electric terminals mounted on said member, a series of open-endedslots in said dome, lifts detachably seated in said slots, heater cords adjustabl'ycarried by said lifts and" terminals on said cords for engaging said terminals on said member.

2. In a hair waving heating machine, a dome comprising a body and aremovable cover, a wired: frame in said dome, a plurality of' lifts mounted on said dome and detachable therefrom when said cover is removed, heater wiring supported by said lifts, and terminals on said wires for engaging said frame.

3; In a hair waving heatingmachine, a dome of-thi-n material having a vertical outer wallprovided with. an open-top slot, a lift member adapted to have a heater cord passed therethrough and provided with recesses in its opposite sides adapted to receive the opposed edges of: said slot whereby said lift and cord may be. readily mounted on or removed from said dome.

4. In a hair waving heating machine dome, a central hub, a frame surrounding nected to said terminals.

5. In a hair waving heating machine, a dome having a vertical outer wall, and a heater cord lift or support element mounted in said wall and adapted to yieldingly engage the heater cord at various positions to support the heater at any desired height.

G. In a hair waving heating machine,- a dome having a vertical outer wall, and a heater cord lift or support element mounted in said wall and comprising a'horizontally disposed passageway and a downwardly and inwardly inclined passageway adjacent to each other and through which a heater cord may he slid, said inclined passageway being adapted to frictionally hold said cord against movement therethrough by weight of a heater.

7. In a hair waving heating machine, a dome having a vertical outer wall, and'a heater cord lift or support element mounted in said wall and comprising a pair of passageways disposed at an angle to each other with two of their ends} adjacent to each other whereby a. cord passed through said passageways and looped thereb'etween will be pressed against the sides of said passag Q ways.

elements seated in said slots and projecting outwardly from said body, and a dome cover fitting over said dome body resting on the projecting portions of said elements and closing the openends of said slots. 7 9. In ahair wa vii'ig heating machine, a dome body with a perforated outer wall, and a plurality of: plugs and heater cord lifts interchangeably seated in the perforations in said wall. 7

10. In a hair waving heating machine, a dome body having. a sheet metal lower wall and having a side wall'of large enough circumference to mount a substantial number ofheater cord supporting lifts, a central hub of rigid structure with radially extending arms, a rectangular frame carried on said arms, a series of metal bushings mounted on said f'ran1e, and a connector for said bushings. 1

11. In a hair wavingmachine dome, a body adapted to have heater cords passed through its side wall and provided with a central hub, a cover'for said body, and a single cover retaining nut-having a screw threaded into said hub;

12; In a hair waving: heating machine, a

dome, a series of open-ended slots in the side Wall of said dome, lifts detaehably seated in said slots, and heater suspending cords adjustably carried by said lifts.

5 13. In a hair waving heating machine, a dome body with a side wall provided with upwardly opening slots, a series of lift elements seated in said slots, and a removable dome cover extending over said body and 10 closing the open ends of said slots.

14. In a hair waving heating machine, a dome body with a side wall provided with upwardly opening slots, a series of lift elements slidably mounted in said slots, and detachable means for holding said lifts in position in said slots.

In testimony whereof I hereunto ain'x my signature this 6th day of February, 1928.

WILLIAM G. SHELTON. 

